Metallic barb-fencing



UNITED STATES PATENT OFFICE.

JAOOBVBRINKERHOFF AND `WARREN M. BRINKERHOFF, OF AUBURN, NEWr YORK, ASSIGNORS TO THE WASHBURN & MOEN MANUFACTURING UOM- PANY, OF WORCESTER, MASSACHUSETTS.

METALLIC BARB-FENCING.

SPECIFICATION forming part of Letters Patent No. 241,601, dated May 17, 1881.

Application filed February 26, 1880.

To all whom tt may concern Be it known that we, J Aeon BEINKERHOEE and WARREN M. BEINKEREOEE, both of Auburn, county of Cayuga, in the State of New York, have invented certain new and useful Improvements in Metallic Barb-Fencing; and we do hereby declare that the following is a full, clear, and exact description of the same, reference bein ghad to the accompanying draw- 1o ings, forming a part of this specification, and

in whichv Figure 1 represents a side view of a section of our improved metallic barb-fencing. Fig. 2 represents an opposite side View of the parts shown in Fig. 1, as will be hereinafter more fully described; and Fig. Srepresents the form of a blank barb as it appears after being cut, ready to be applied in the manufacture of ou said improved metallic barb-fencing 5 and Fig.

2o 4, a section on line A B, Fig. 1.

To enable those skilled in the art to which our invention belongs to make and use the same, We will proceed to describe the improvement more in detail.

In the drawings, the part marked A represents a metal strip, upon which barbs B are secured. Barbs B are formed from blanks B2, which we prefer to cut from long strips of thin metal, since by so doing they can be cut with 3o out any loss of metal, excepting a slight shaw ing taken off at the point a to give that barb the desired shape; but this is not essential, and they could be made without cutting oft' this shaving at the point a. As indicated in 3 5 Fig. 3, the pointed ends C of the barbs B are formed by the slits or cuts b and c and the cuts a and d. After the blank barbs B have been cut or formed, as shown in Fig. 3, they are bent or clasped about the metal strip A', so that 4o their ends D D will nearly come together, as indicated in Figs. 1 and 4, and by which oper ation the pointed ends C C will `be thrown out so as to project in opposite directions, as indicated in Figs. 1, 2, and 4.

made to project more orless out of line with Of course, if preferred, the ends C O may be each other, suitable machinery beingarran ged for that purpose.

After the barbs B have been applied to the metallic strip A (and we prefer to coil up the 5o barb-strip A upon a reel as fast as the barbs are applied thereto) it is run through a bath of molten metaltin or zinc-and by which operation the barbs B are secured and permanently fastened to the strip A', and the spaces 55 c between the ends D D of the barbs are lled with the zinc or tin, and also united. Consequently the barbs are strong and durable and not liable to be displaced or corroded, the tin or zinc adhering very closely and readily to the 6o newly-cut edges of the barbs.

1t will be noticed that the points are formed by cutting or slitting the body of the blank from at or near its center toward each end in such manner that when the body of the barbblank is bent or made to surround the metal strip or strand the points will project outwardly and be on that side of the strip or strand where the ends of the blanks approach or meet each other. This construction of blankavoids 7o waste of metal, and therefore is less expensive to manufacture than those barbs in which the points and confining-lips are formed by cutting the barb-blank inwardly from each end.

By cutting or slitting the blank from at or near its center toward each end to form the points no specially-constructed lips or provision th ercfor are required, as heretofore, butthat portion ofthe blank which is uncut, and which carries and supports the points, is brought 8o in contact with the strip or strand when bent thereon on the same side with the prongs. Therefore the barb can be secured in a xed immovable position, avoiding all tendency to separation by twisting of the strip. The barb 8 5 as thus constructed can be applied without alteration in form or size to strips or strands varying in width, because the prongs are at or near the ends of the blank, and are carried by that-portion of the blank which is bent :around 9o the strip or strand for fastening or clinching v it in position.

Having described our improvements in methe attaehing-bends,all substantially as shown tallie barb-fencing, what we elaln therein ns and described, and for the purpose set forth. 1o Egrgfelriligleiitlon, and desire to secure JACOB BRINKERHOFR 7 5 A barb the points 'of which are made or WARREN M BRINKERHOFF' formed from the body of the blank by means Witnesses: of slits or outs, said points pointing toward THOs. H. DODGE, the ends ofthe blank, and thrown outward by ALBERT A. BARKER. 

